Slimes and sludges, electrolytic refining of tin, lead and silver containing alloy

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Automatic calculation with MeCLas Tool

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Cross-reference 2

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

other: software

Title:

MECLAS (Metals Classification Tool, version V5.2) classification for Slimes and sludges, electrolytic tin refining

Author:

ARCHE Consulting

Year:

2018

Bibliographic source:

MECLAS webpage: www.meclas.eu

Report date:

2018

Materials and methods

Principles of method if other than guideline:

Aquatic toxicity of the UVCB substance was determined by classifying based on Mixture rules from EU CLP ( tier 1= summation of classified components or Tier 2 = additivity of soluble components to derive Hazard class) and back calculation to the corresponding L(E)C50 range

Test material

Test material information

Constituent 1

Reference substance name:

Tin

EC Number:

231-141-8

EC Name:

Tin

Cas Number:

7440-31-5

Molecular formula:

Sn

IUPAC Name:

tin

Constituent 2

Reference substance name:

Silver

EC Number:

231-131-3

EC Name:

Silver

Cas Number:

7440-22-4

Molecular formula:

Ag

IUPAC Name:

Silver

Constituent 3

Reference substance name:

Antimony

EC Number:

231-146-5

EC Name:

Antimony

Cas Number:

7440-36-0

Molecular formula:

Sb

IUPAC Name:

antimony(3+)

Constituent 4

Reference substance name:

Fluorine

EC Number:

231-954-8

EC Name:

Fluorine

Cas Number:

7782-41-4

Molecular formula:

F2

IUPAC Name:

fluorine

Constituent 5

Reference substance name:

Lead

EC Number:

231-100-4

EC Name:

Lead

Cas Number:

7439-92-1

Molecular formula:

Pb

IUPAC Name:

lead

Constituent 6

Reference substance name:

Arsenic

EC Number:

231-148-6

EC Name:

Arsenic

Cas Number:

7440-38-2

Molecular formula:

As

IUPAC Name:

arsenic

Constituent 7

Reference substance name:

Nickel

EC Number:

231-111-4

EC Name:

Nickel

Cas Number:

7440-02-0

Molecular formula:

Ni

IUPAC Name:

nickel(2+)

Constituent 8

Reference substance name:

Copper

EC Number:

231-159-6

EC Name:

Copper

Cas Number:

7440-50-8

Molecular formula:

Cu

IUPAC Name:

copper

Test material form:

solid: particulate/powder

Results and discussion

Effect concentrations

Duration:

96 h

Dose descriptor:

EC50

Effect conc.:

<= 1 mg/L

Nominal / measured:

estimated

Conc. based on:

test mat.

Basis for effect:

other: most sensitive species

Any other information on results incl. tables

Sublethal observations / clinical signs:

According to MeClas, the substance is classified as acute 1 to environment.

Applicant's summary and conclusion

Validity criteria fulfilled:

yes

Conclusions:

Good quality estimate of the L/EC50 of the UVCB substance.
The substance is classified as acute cat 1 to environment resulting in a L(E)C50 < 1 mg/L.

Executive summary:

The study provided a conservative estimate of the effect concentration, derived on basis of the classification outcome (mixture toxicity rules) from a reasonable worst-case sample of the substance using mineralogical information from the representative sample. 

 

Validity of the model used:

1. Defined endpoint: the endpoint is a REACH compliant defined endpoint

2. Unambiguous algorithm: EU CLP guidance based summation formula to determine classification, followed by back-calculation to related hazard criteria

3. Applicability domain: applicable to classify complex metal containing materials. 

4. Mechanistic interpretation - metal species: the tool translates the elemental composition into a mineralogical composition relevant for classification.